1 files changed, 24 insertions, 0 deletions
diff --git a/Test/D08cmdsubst.ztst b/Test/D08cmdsubst.ztst
index 89e725966..4e0759e35 100644
--- a/Test/D08cmdsubst.ztst
+++ b/Test/D08cmdsubst.ztst
@@ -153,3 +153,27 @@
   eval 'foo echo this just works, OK\?)'
 0:backtracking within command string parsing with alias still pending
 >this just works, OK?
+
+  (
+    set errexit
+    show_nargs() { print $#; }
+    print a $() b
+    print c "$()" d
+  )
+0:Empty $() is a valid empty substitution.
+>a b
+>c  d
+
+  empty=$() && print "'$empty'"
+0:Empty $() is a valid assignment
+>''
+
+  (
+    setopt ignoreclosebraces
+    alias OPEN='{' CLOSE='};'
+    eval '{ OPEN print hi; CLOSE }
+    var=$({ OPEN print bye; CLOSE}) && print $var'
+  )
+0:Alias expansion needed in parsing substituions
+>hi
+>bye